Harry Bennett

Title: Love Calls the Doctor
Author: Elizabeth Seifert
Published: November 1960, ©1958
Publisher: Permabook
Illustrator: Harry Bennett

His signature is in the lower right-hand corner.

As a child, she cried until she got her sister’s favorite doll. Then it was Belinda’s new hat, her best dresses and next her fiancé. Dazzlingly beautiful, Marian had little difficulty in changing her status from maid of honor to bride. And now she was threatening Belinda’s happiness once more. “I know she’s your sister, Belinda,” Dr. Peter Jahns warned. “But please be careful. Marian has no family loyalty. She proved that once. Don’t let her hurt you again!”

Paul Anna Soik

Title: Hospital Corridors
Author: Mary Burchell
Published: 1975, ©1955
Publisher: Harlequin
Illustrator: Paul Anna Soik

His signature is in the lower left-hand corner.

Madeline felt that she was on the brink of a completely new life when she left England to do a year’s nursing in a great Montreal hospital. But she found that, after all, she had already met on board ship—though he was said to be so unapproachable—Dr. Lanyan, a distinguished member of the staff; and one of the patients would be the beautiful (but very difficult) Mrs. Sanders whom she had nursed before, with her good-looking and attentive son among the visitors. Still, everything else—except her familiar, well-loved work—would be excitingly new, and she  might even have occasion to work for Dr. Lanyon ...

Allan Kass

Title: New Orleans Nurse
Author: Diana Douglas (pseud. Richard Wilkes-Hunter) 
Published: August 1974, ©1974
Publisher: Signet
Illustrator: Allan Kass

His initials are at the base of the tree. 

When beautiful Melinda Fontane Excepted a new assignment during Mardi Gras time in New Orleans, she found her patient to be a charming, if enigmatic, man. She could not understand the veil of secrecy which surrounded his case. But when the doctor in attendance turned out to be handsome Garth Woodward, an old friend of Melinda’s, she was warned that her patient was a target for murder, and that she, too, could be in danger. That was all Garth would tell her, but he kept a close watch on his lovely young assistant—close enough to rekindle Melinda’s deep feeling for him. Then, suddenly, midst the swelling frenzy of the Mardi Gras, all disguise is dropped, and Melinda learned to the real identity of her mysterious patient—and discovered to the true face of love …